VYPR
Unrated severityCISA KEVNVD Advisory· Published Jul 7, 2021· Updated Dec 30, 2025

Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE

CVE-2021-22555

Description

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

289

Patches

Vulnerability mechanics

References

9

News mentions

1